LTC3403 - 1.5MHz, 600mA Synchronous Step-Down Regulator With Bypass Transistor

The LTC3403 is a high efficiency monolithic synchronous buck Regulator optimized for WCDMA power Amplifier applications. The output voltage CAN be dynamically programmed from 0.3V to 3.5V. At VOUT > 3.6V an internal bypass P-Channel MOSFET connects VOUT directly to VIN, eliminating power loss through the inductor. Selectable forced continuous mode enables fast VOUT response to the controlling input.
Supply current is only 20A in Burst Mode operation and drops to <1A in shutdown. The 2.5V to 5V input voltage range makes the LTC3403 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems.
Switching frequency is internally set at 1.5MHz, allowing the use of small surface mount inductors and capacitors. The internal synchronous Switch increases efficiency and eliminates the need for an external Schottky Diode
The LTC3403 is available in a low profile 8-lead 3mm x 3mm DFN package.
By Linear Technology Corporation
LTC3403 's PackagesLTC3403 's pdf datasheet
LTC3403EDD DFN
LTC3403EDD-PBF DFN
LTC3403EDD-TR DFN
LTC3403EDD-TRPBF DFN




LTC3403 Pinout, Pinouts
LTC3403 pinout,Pin out
This is one package pinout of LTC3403,If you need more pinouts please download LTC3403's pdf datasheet.

LTC3403 Application circuits
LTC3403 circuits
This is one application circuit of LTC3403,If you need more circuits,please download LTC3403's pdf datasheet.


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